101220101212 has 48 divisors (see below), whose sum is σ = 189079984800. Its totient is φ = 47406496896.

The previous prime is 101220101201. The next prime is 101220101233. The reversal of 101220101212 is 212101022101.

It is a junction number, because it is equal to n+sod(n) for n = 101220101192 and 101220101201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2421078 + ... + 2462530.

It is an arithmetic number, because the mean of its divisors is an integer number (3939166350).

Almost surely, 2^101220101212 is an apocalyptic number.

It is an amenable number.

101220101212 is a deficient number, since it is larger than the sum of its proper divisors (87859883588).

101220101212 is an equidigital number, since it uses as much as digits as its factorization.

101220101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41603 (or 41563 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101220101212 its reverse (212101022101), we get a palindrome (313321123313).

The spelling of 101220101212 in words is "one hundred one billion, two hundred twenty million, one hundred one thousand, two hundred twelve".